i finished wave 9 beta and i couldnt jump to next wave or jump to level 1 and i noticed im in Nan arena level
so i did jump but i joined to level 12 !
then wave 9 repeated
before i saw this bug in arena too .. one time i was at level 14 and i jumped up to 15 .. then i was in Nan arena level and after 20 sec i did jump and i came back to level 14
this time i jumped to beta from level 12 and after jump i came back to level 12.. when happening this bug after jump we will back to previous level